Wagner M. Zago is CSO at PROTHENA CORP PUBLIC LTD CO (PRTA). They have made 4 open-market trades across 1 company since 2017, most recently 2026-07-28.
CIK 0001708681
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 4 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| PRTA | 85,000 | $711K |
Shares reported on the most recent Form 4, priced at the 2026-07-30 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PRTA | SELL · 10b5-1 | 2023-08-02 | 2023-08-02 | $67.01 | $521K | -8.5% | -17.5% | -45.5% |
| PRTA | SELL · 10b5-1 | 2023-07-05 | 2023-07-05 | $68.16 | $545K | +4.9% | -8.4% | -29.4% |
| PRTA | SELL · 10b5-1 | 2023-06-07 | 2023-06-07 | $71.05 | $2.7M | -2.3% | -10.1% | -24.3% |
| PRTA | SELL | 2021-06-22 | 2021-06-24 | $46.15 | $10.6M | +8.9% | +5.2% | +55.5% |
| PRTA | SELL | 2021-02-18 | 2021-02-19 | $25.50 | $192K | -4.7% | +6.8% | +0.8% |
| PRTA | SELL | 2021-02-12 | 2021-02-17 | $18.69 | $633K | -15.7% | -4.5% | -6.5% |
| PRTA | SELL | 2017-09-28 | 2017-09-29 | $70.00 | $63K | -5.7% | -10.6% | -41.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.